510 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



The arms are all detached from the calyx and badly broken up; as 

 nearly as I can judge they appear to branch twice, and occasionally 

 three times. The axials and the second joint after each axial are 

 usually syzyoies; other syzyg-ies are distril)uted at intervals of two, 

 three, or four joints throughout the distichals and palmars. All the 

 joints in the arms are dorsally and laterally somewhat concave, pro- 

 ducing a l)ulging at the articulations, and giving a rough look and 

 feeling to their dorsal surface. 



The highly calcarious, hard, and rigid stem is composed of 106 

 joints, without any trace of nodes or cirri. Each joint is trapezoidal 

 when vie^ved laterally, the base up when viewed in one position, the 

 base down when viewed in a position at right angles to the first. This 

 is due to the fact that the faces of each joint are elliptical in shape, 

 with the axes of the ellipses of the superior and inferior faces at right 

 angles to each other. The stem is 37.5 mm. in length, the lowest joint 

 having for each face a maximum diameter of 8 mm. and a minimum 

 diameter of 6 mm., with a height of 1.5 mm., the joints becoming 

 gradually smaller, so that the topmost but one measures — longest 

 diameter 6 mm., shortest diameter 5 mm., height 2 mm. The stem is 

 quite uniform throughout, the only exception being the thirty-second 

 joint from the calyx, which has the axes of both faces running in the 

 same direction instead of at right angles to each other. After the 

 one hundred and sixth joint, which differs from all the others in having 

 its inferior face circular, the diameter of the circle equaling the 

 greater diameter of the ellipse forming its superior face, the stem 

 terminates in a solid, heavy, and very hard root, with a fringe of short 

 radial processes, the whole being firmly attached to a small piece of 

 pumice. The color in life is dull greenish yellow. 



Many other features of this strange form are of great interest, but 

 would be out of place in a preliminary description. I hope, however, 

 to be able to publish a detailed account of it later, with a sketch of its 

 anatomy, and a discussion of its pt'obable affinities. It appears to 

 represent an entirely new family, which may appropriately be called 

 " Phrynocrinida?." 



BATHYCRINUS PACIFICUS Clark, new species. 



Type.—^t. No. 22602, U.S.N.M. 



It is with great pleasure that I am able to add the genus Bathycri- 

 mis to the fauna of the abyssal Pacific, as the genus has hitherto only 

 been known from the Atlantic, where, however, it has a very wide 

 range, from 65° 55' north latitude to 16° 16' south latitude, through 

 more than 110° of latitude. The discovery of a species in the Pacific 

 gives this genus the most extensive range of all the genera of recent 

 stalked crinoids. No specimen of BatJnjcrhms up to the present time 

 has been obtained in less than 1,050 fathoms of water; the type 



